Q. gets and puts operate on

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Q. gets does the following when it reads from stdin

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Q. Strcat function adds null character

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Q. Which of the following library function is not case-sensitive?

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Q. The following expression can be substituted for

if (isalpha(c) && isdigit(c))

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Q. Which of the following will return a non-zero value when checked with isspace(c)?

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Q. Which is true about isaplpha(c), where c is an int that can be represented as an unsigned char or EOF.isalpha(c) returns?

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Q. Which is true about isupper(c), where c is an int that can be represented as an unsigned char or EOF.isupper(c) returns?

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Q. Which is true about isalnum(c), where c is an int that can be represented as an unsigned char or EOF.isalnum(c) returns?

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Q. Which types of input are accepted in toupper(c)?

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Q. What is the difference in the ASCII value of capital and non-capital of the same letter is?

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Q. ungetc can be used only with getc.

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Q. How many characters for pushback is guaranteed per file while using ungetc(c, fp);

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Q. Which of the following is the correct syntax for calling function ungetc?
(Assume int c and FILE *fp)

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Q. ungetc is used

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Q. Which of the following the is the correct declaration for ungetc?

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Q. Which of the following cannot be used with ungetc?

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Q. What does the ungetc function return for the following expression?
ungetc(c, fp); //where declarations are int c and FILE *fp

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Q. int ungetc(int c, FILE *fp) returns

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Q. Only _____character of pushback is guaranteed per file when ungetc is used.

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